CVE-2026-40281: gotenberg · Argument Injection
Affects gotenbergSource GCVE Database
Not known to be exploited · public detection template (Nuclei) · CVSS 10.0 Critical.
Data as of 27 Oct 2026, 02:45 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: evidence found.
nuclei template: Gotenberg <= 8.30.1 - Remote Code Execution
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| gotenberg gotenberg | Affected
| Fixed in– |
AI-suggested
Since the vulnerability exists in versions 8.30.1 and earlier, upgrading to a fixed version when available is recommended. Until a fix is released, restrict access to the metadata write endpoint to trusted users only and consider isolating the container filesystem to limit potential damage. Monitor vendor advisories for official patches or updates.
Description
Gotenberg versions 8.30.1 and earlier have an argument injection vulnerability in the metadata write endpoint. While metadata keys are validated for control characters, metadata values are not sanitized, allowing newline characters to split ExifTool input into multiple arguments. This enables injection of arbitrary ExifTool pseudo-tags, permitting an unauthenticated attacker to rename, move, overwrite files, or create symlinks and hard links within the container filesystem.